code: def _flatcat(xs):
      return np.concatenate([x.flatten() for x in xs])
  
imports: import time
  from magenta.models.coconet import lib_tfutil
  from magenta.models.coconet import lib_util
  import numpy
  from scipy.misc import logsumexp
  import tensorflow.compat.v1
label_desc: Use image node_id 5 for calling a global function with example usage: _flatcat(xs) and returns: np